31405001226 has 16 divisors (see below), whose sum is σ = 62864491584. Its totient is φ = 10459252224.

The previous prime is 31405001209. The next prime is 31405001293. The reversal of 31405001226 is 62210050413.

It is a junction number, because it is equal to n+sod(n) for n = 31405001196 and 31405001205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262886 + ... + 2276721.

It is an arithmetic number, because the mean of its divisors is an integer number (3929030724).

Almost surely, 2^31405001226 is an apocalyptic number.

31405001226 is an abundant number, since it is smaller than the sum of its proper divisors (31459490358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31405001226 is a wasteful number, since it uses less digits than its factorization.

31405001226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540765.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31405001226 its reverse (62210050413), we get a palindrome (93615051639).

The spelling of 31405001226 in words is "thirty-one billion, four hundred five million, one thousand, two hundred twenty-six".